Tree-sawing machine.



No. 883,787. PATENTED APR. '7, 1908.

. T. CHRISTINE (Sz F. H. BUDDE.

TREE SAWING MACHINE.

APPLICATION FILED APR. 2Q, 1907.

3 SHEETS-SHEET l.

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No. sssv?. PATENTEB APR. '7, 1908.

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TREE SAWING- MACHINE. APPLIUATIGN rum MR. 29,'19c7.

nEEETS-SHBET 2y PATENTED APR. '7, 1908.

W. T. UHRISTINB: F. H. BUDDE.

TREE SAWING MACHINE.

APPLICATION FILED APR. 29, 1907.

3 SHEETS-SHEET 3.

NITED STATES PATENT oEEIoE.

WESLEY T. CHRISTINE, OF CHICAGO, AND FRED H. bL'DDE, OF AURORA, ILLINOIS.

TREE-simmer MACHINE;

No. 883,737'.v

Specification of Letters Patent.

Patented April 7, 190s.-

pplicatzon filed April 29. 1907. Serial No. 310.791.

To q l4 'u1/tom. it 'muy concern:

TINE and Fimo li. Brunn, citizens o1 the. United States, residing. respectively. at (.hi-

Cavo and Aurora. in the counties ot (ook and Z a plan view ot' a tree-sawing machine embodyv V l Be. 1t known that we. ll EsLEi.' l.. (nnis- Kaneand State ol illinois, have invented n f certain new und usel'ul Improvement in 'l`1eesawing Machines. ol" which the following is full, clem'. concise. and exact description, rel'- erem-e heiug hud to the accompanying drawings. l'orming n purtoll this speciliczition.

()ur invention relates to nmchines for cutshown is provided with a supporting frame conrenienthv formed of short uprights or legs 1, 1, and long legs 2,

.'constructed, is mounted a platform 5 oonting' or s'uwing down trees; und its principal 4 object is to provide a simple, practical and ellicient l'orin ot nmchinc l'or this` purpose, which cau' lic eusil)v operated.

Another object is to arrange l'or making an under-cut,v that is cut-ting out a wedgeshaped liloek on one side of the. tree so as to cause the tree to full on that side; also to allow' the tret` to he. trinnned and cut after be.- ing felledA (')ther objects ot the invention are to provide'simple und practical meehanisnu;to ar-A range. for the easy adjustment and manipula-v tion ol" the. machine nnd its parts; and to accom )lish the lforegoing and other desirable les'u ts' in ziA simple. and expeditious manner.

ln the. machine which we. show herein for carrying out our invention, Wel provider a suitable frame carrying a lilatliorm on which ismounted a saw and mechanism for operating the same. The saw-operating mechanism is arranged to feed or advance the saw stepby-step, so that the saw'will he. reeiprocated back and forth to perform the sawing o )ern-- tion, and will also be advanced or feti torward to'eut across the tree.

'l`hc platform on which thev saw and its o erat-ing `mechanism are mounted, is pivotallii supported so as to permitit. to be tilted into a horizontally mehned posltion, and the point of pivotal support is above the livel of the latform, whereby when the tilting is erorined, the saw will he elevated as wel as inclined downwardly. This permits undercutting'. This is done by making two outs,- a horizontal one with the platform in horizontal position, and an angular'l one with the platform in tilted position, the latter extending down to the horizontal out so as to out out a wedge-shaped block. Also, the saw 1an be adjusted to a vertical position to per- `1nit the tree to be trimmed and vout after be.-

reniently supported :it its ends upon cross hars (i, ti. lluch. ol these cross hars has its end lient twice (shown in Fig. 3), and a cor ner formed h v such'lwmling is pivoted at 7 at the tops ot' the short legs 1, while the remaining portion ol' such end piece normally rests upon the corresponding end piece 4. A portion of said end pieces ti project. beyond the ost 2 andform handles n'. Thus the plat orm 5 is provided with a tilting orpivotal connection by which it can be tilted mto an obli ue position horizontally, :is shown by 4dot-ted mes in Fig. 3, `and the points olplvotal support are above the. normal position of the. platform.

vUpon the plattform there is mounted a reciprocating carriage S arranged to reciprocate or slide lengthwise ol the platform 5 upon guide rods t), t) secured at their ends to the platform 5.l As an arrangement. for reciprocating the carri-age 8 we have showna driving rod 1() pivotnlly connected with'the bottom of the carriage at 11 and connected with a crank 12 on a rot-ary shaft 13 carrying a gear 14 meshing with a pinion 15 on a rot-arydriving shaft 16. The shafts 13 andlt are mounted in suitable bearings upon the platform 5. rlhe drive shaft 16 is shown driven hy an air engine or other suitable mo-v tor (not shown) which is mounted on the platform 5. Other drive :irre-mientents` either power or hand", can be employed.

The reciproca-ting carriage S" carries .l sawholding carriage 1S which supports anu cnrries a saw 1t). This carriage 18 is mounted upon a pair ot' slide rods 20, 2t) mounted transversely upon the reci )roeat-ing carriage 8a and secured at their ends to the saine. A .rotary screw-shaft 21 is. also mounted upon the reciprocating carriage. S and is engaged by a clutch device '22. lhis device conveniently consists ot' a separable slee-ve It (Fig.

6) internally threaded so as to engage the screw-rod 21, Vand a dlsk 24 having slots 25 (Fig. 1) engaging pins 26. 'lhe pins 26 are f 1- f secured to plates 2.17, Z7 (111g. 6) iol-med n1* A 2, side pieces 3, 3- nnd end pieces l, 4. Upon the frame thus- 1f!V 3 0, 31 adapted to' enga each reciprocation tion,

Vshown in dotted -Y Shaped block to be pivoting the platform 5 y said platform, the saw 1n its own horizontal plane, the would be madedownward from tegral with the separable or divided sleevev 23, so that by turning the disk 22 theins 26, 26 will be shifted so as to open and c ose the sleeve 23 and thereby cause the screw 21 to ed and disengaged. The disk 22 is provi with a handle 28 by which it can be operated. o o

Mounted upon the platform 5 are feed devices conveniently consisting of ivoted dogs e a toot led wheel 32 y mounted on the screw aft 21. ,'.jamunted upon a bracket 33 and the dog 31 upon alug 34, and said dogs are subject to springs 35, 36 respectively. One of the short 515 posta 1 is rovided with a yoke 37 to which a 38 1s secured for surrounding the tree to be saweddown.

In operation 'the machine is in effect tied "to the tree which is to be sawed down, by the ,2o chain 38 as shown in Fig. 1, and then the saw 1s operated. The 'rotation of the. driving shaft 16 causes the reciprocating carnage 8 'to work back and forth carrying the saw with l it so as to effect the sawing operation.v At however the toothed wheel 32 strikes against the dogs 30 and 31, thereby causing said wheel to turn intermittently and advance or feed the sawforwardly. Thus the saw works across the tree transi 30 versely to' its direction of reciprocation.

When desired to make an under-cutin the -tree to cause the tree to fall i`n a certain direction, a horizontal cut is made b sawing with the platform 5 in horizonta posiand then said platform is tilted u as position in Fig. 3, an an oblique cnt inade down to meet the hori zontal cut and' thereby lcause a wed e cut outof the tree. Ey above the level of is raised and the` "oblique cut is made down to the horizontal cut. Whereas'if the platform were pivoted obli ue cut the evel of 'the horizontal cut and no' block would be jcutout.

'desired Vto set the saw, the clutch 22 can be disengaged andv the4 aw moved The'dog 30.

to the proper position, and then the clutch 22dthrown into engagement with the screw- ,ro 21. It will be understood that changes and l modiiications can be made Without departfrom the spirit of the invention.

1. 'A sawing machine comprising a reciprocating saw, anda platform ca the same andrpivotally mounted at points above the level of said platform.

2. A sawing machine, comprisin ciprocating saw is mounted, and cross-pieces supporting said platform,y said 'cross-pieces having portions extending upwardly above the platform with which pivotal connections are made. f

A tree 'sawin' machine comprising an angularly adjust-able platform, a reciproeating carriage carried by said platform, a saw carrying carriage mounted for trans verse movement upon said reciprocating carriage, a screivshaft carried bysaid reciprocating carriage and having a threaded engagement withl saidj saw carryingcarriage, and means. for intermittently turning said screw shaft as the sa is reciprocated.

4. A tree sawin machine comprising an angularl'y adjusta )le platform, a reciprocating carriafre mounted on said platform, means carried by the platform for reciproeating said carriage, a saw carrying carriage mounted for transverse movement upon said reciprocating carriage, a screw shaft carried by said reciprocating carriage, a. movable threaded member carried bT the vsan.' carrying carriage and adapted moved into engagement- With said screw shaft, and means for intermittently turning said screw shaft as the saw is reciprocated.

In witness whereof, we hereunto subscribe our names this 22d day of April A. D., 1907.

WESLEY T. CHRISTINE. FRED H. BUDDE.

lrVitn sses:

' M; BELFIELD, r l. C. LEE.

saw, a platform on which the i to be- 

